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    What will come in the place of the question mark ‘(?)’ in the following equation, if ‘−’ and‘÷’ are interchanged and ‘×’ and ‘+’ are interchanged?7 +
    Question

    What will come in the place of the question mark ‘(?)’ in the following equation, if ‘−’ and‘÷’ are interchanged and ‘×’ and ‘+’ are interchanged?
    7 + 45 − 15 × 5 ÷ 12 = ?​​

    A.

    14

    B.

    16

    C.

    15

    D.

    17

    Correct option is A

    Given: 7 + 45 − 15 × 5 ÷ 12 = ?
    Given Sign
    -
    ×
    Interchanges Sign
    ÷
    +
    ​Given equation is solve by BODMAS rule.
    Operation preference wiseSymbolBrackets[],,()Orders, of(power),(root),ofDivision÷Multiplication×Addition+Subtraction\begin{array}{|c|c|} \hline\textbf{Operation preference wise} & \textbf{Symbol} \\\hline\text{Brackets} &[],{}, () \\ \hline \text{Orders, of} & (power), √ (root) , of \\ \hline \text{Division}& ÷ \\ \hline \text{Multiplication} & × \\ \hline \text{Addition} & + \\ \hline \text{Subtraction} & - \\\hline\end{array}
    New equation:  7 × 45 ÷ 15 + 5 - 12 = ?
    7 × 3 + 5 - 12 = ?
    21 + 5 - 12 = ?
    26 - 12 = ?
    ? = 14
    Thus, correct option is (a).

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